diff --git a/sort.1 b/sort.1
index 06b14af..969740c 100644
--- a/sort.1
+++ b/sort.1
@@ -64,11 +64,11 @@ refers to the last character of the ending column.
 .Sy f
 can be used to specify options
 .Sm off
-.No (
+(
 .Sy n
 ,
 .Sy b
-.No )
+)
 .Sm on
 that only apply to this key definition.
 .Sy b